From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 21 Oct 2021 14:54:17 +0000 (+0200)
Subject: usb: dwc3: Add support for usb3-phy PHY configuration
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1e8e7c4bda7b815f48f2ad66dc6d6e0673ff6313;p=thirdparty%2Fu-boot.git

usb: dwc3: Add support for usb3-phy PHY configuration

When usb3-phy label is found, PHY driver is called and serdes line is
initialized. This is preparation for serdes/psgtr driver to configure GT
lines based on description in DT.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c
index 22c01ca392b..0a8a776b1b8 100644
--- a/drivers/usb/dwc3/dwc3-generic.c
+++ b/drivers/usb/dwc3/dwc3-generic.c
@@ -443,6 +443,18 @@ static int dwc3_glue_probe(struct udevice *dev)
 	struct udevice *child = NULL;
 	int index = 0;
 	int ret;
+	struct phy phy;
+
+	ret = generic_phy_get_by_name(dev, "usb3-phy", &phy);
+	if (!ret) {
+		ret = generic_phy_init(&phy);
+		if (ret)
+			return ret;
+
+		ret = generic_phy_power_on(&phy);
+		if (ret)
+			return ret;
+	}
 
 	glue->regs = dev_read_addr(dev);